import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Scanner;

public class Demo16_scanner {
    public static void main(String[] args) {
        try(InputStream inputStream=new FileInputStream("./test.txt")){
            Scanner scanner=new Scanner(inputStream);
            while(scanner.hasNextInt()){
                System.out.println(scanner.nextInt());
            }
        }catch(IOException e){
            e.printStackTrace();
        }
    }
}
